In the Eighteenth century, experimenters dealing with electricity were prone to receiving painful, and perhaps fatal, shocks from their experimental devices. This paper, read before the Royal Society on March 12, 1767, dealt with a proposed solution to the electrical shock problem. A "Description of an improved Apparatus for performing Electrical Experiments, in which the Electrical Power is increased, the Operator intirely secured from receiving any accidental Shocks, and the whole rendered more convenient for Experiments that heretofore: By C. L'Epinasse, F. R. S." describes the apparatus and how it should be used.

The item is a First Edition, extracted and disbound from The Philosophical Transactions of the Royal Society, Vol. 57, Part I For the Year 1767, pages 186-191, with one large extended plate. This volume of the transactions was published in London in 1768. The disbound item is approximately 6 1/4 x 8 1/2 inches. The pages are tanned, but the text is clear and easily read. The item is in good condition.

The illustrations accompanying this description show the first page of the paper, a further page of text, and the extended plate with its illustration of the improved apparatus.

Charles L'Epinasse was elected as a Fellow of the Royal Society in 1767.